vacuum issue

[jayc-glanza17]

Right guys ive had very little or no assist from my brake servo since the re shell.

Ive checked braking system all fine.

Checked hoses around inlet nine are cracked.

So this weekend i tested the vaccum.

Reading was 15 (mercury) on my carb sync kit.

My daily is 20.

When take the hose off and put thumb over it, you feel very weak suction.

Daily civic is sucking like a hoover..

What is the stock reading for vaccum for a 4efte?

[jayc-glanza17]

Would add i have a zisco inlet.

which i taken off to inspect although rough it doesnt appear to have any holes or defects causimg a leak.

[jellybaby]

U checked the brake

Servo ? And mc ?

Could

B a weak diapham

[jayc-glanza17]

Its not the one involved in crash as had same thing with that one after the re shell.

Car pulls a weak vaccum on the gauge and it feels quite weak when holding thumb over the pipe.

And when u pump pedal so it goes hard then start engine the pedal doesnt sink.. which its supposed too.

[jellybaby]

Sounds like survo

[jayc-glanza17]

Im not so sure. As it shouldnt effect engines vacuum.

im guessing inlet leak or something like that..

[jellybaby]

Im not so sure. As it shouldnt effect engines vacuum.

im guessing inlet leak or something like that..

Shit sorry I forgot they have a pipe off the Inlet Hose not got small hole in it ? But i still check the servo

[jayc-glanza17]

Pipes been changed and checked. Also 1 way valve is ok.

This servo is from a breaker from a mate and was great on his starlet..

Unless just worn out..

Still lost tbh.

[jellybaby]

Pipes been changed and checked. Also 1 way valve is ok.

This servo is from a breaker from a mate and was great on his starlet..

Unless just worn out..

Still lost tbh.

Strange one. Have u change size of the pipe of the inlet atall ? I just trying to think what could be causing the weak vacume

[jayc-glanza17]

No. Pretty much its the same as last shell.

Its annoying. And think is has something to do with my small running niggles too

[jayc-glanza17]

Issue is fixed.

Turned out to be inlet manifold flange is so badly warped.

Put stock inlet back on and brake servo works. Idle is bang on..

So staying oem inlet this year to enjoy car.

[maddox710]

Nice one Jay, can you not get the flange ground flat and re use it?

[jayc-glanza17]

Tbh it probaly could. But its an issue im not chasing as see what stock inlet does on a map.

But it need a bit time taken to repair..

Just keep oem on for now and enjoy the damn thing.lol

[maddox710]

Too right

[jayc-glanza17]

Will get a tweak of map before out properly.